| System Information | ||||
| Affiliation: | IBM Development Engineering - DARPA Trial Subset | URL: | http://www.ibm.com | |
| Location: | USA, Endicott | System Use: | Research | |
| System Manufacturer: | IBM | System Name: | IBM Power775 | |
| Interconnect Manufacturer: | IBM | Interconnect Type: | IBM Hub Chip integrated interconnect | |
| Operating System: | Redhat Linux 6.2 | MPI: | IBM PE MPI release 1206 | |
| MPI Wtick: | 0.0000000005252101 | BLAS: | IBM ESSL 5.1 | |
| Language: | C | Compiler: | xlc 11.1 | |
| Compiler Flags: | -qhalt=w -qsmp=omp -g -q64 -O3 -qhot -qarch=pwr7 -qtune=pwr7 | Processor Type: | IBM Power7 Quad-Chip module | |
| Processor Speed: | 3.836 GHz | Total Processors: | 1488 | |
| Processors Entered: | 1470 | Processors determined: | 47040 | |
| Cores per chip: | 32 | HPL Processes: | 1470 | |
| MPI Processes: | 1470 | Threads Entered: | 32 | |
| Threads determined: | 32 | FLOPs per cycle: | ||
| Theoretical peak: | 1443.56352 TFlop/s | Total memory: | 188160 GiB | |
| FFT library: | FFTW | |||
| Explain Optimizations: | ||||
All optimizations done to routines in accordance with HPCC rules Customized G-RandomAccess and EP-RandomAccess: Uses IBM hardware support. Customized G-PTRANS: Bypasses MPI and uses IBM Hub Chip interconnect Customized G-FFT: Uses IBM Hub Chip interconnect during transpose phase Customized EP-Stream: Uses pthreads explicit paralleization Customized G-HPL: Uses OpenMP during LASWP phase | ||||
| HPL | ||||
| HPL: | 1067.79 Tflop/s | HPL time: | 12761.8 | |
| HPL eps: | 1.11022e-16 | HPL Rnorm1: | 0.00000141383 | |
| HPL Anorm1: | 684854 | HPL AnormI: | 684695 | |
| HPL Xnorm1: | 3028690 | HPL XnormI: | 7.23258 | |
| HPL N: | 2734200 | HPL NB: | 144 | |
| HPL NProw: | 30 | HPL NPcol: | 49 | |
| HPL depth: | 1 | HPL NBdiv: | 2 | |
| HPL NBmin: | 4 | HPL CPfact: | R | |
| HPL CRfact: | R | HPL CPtop: | 1 | |
| HPL order: | R | |||
| HPL dMach EPS: | 1.110223e-16 | HPL sMach EPS: | 0.00000005960464 | |
| HPL dMach sfMin: | 2.225074e-308 | HPL sMach sfMin: | 1.175494e-38 | |
| HPL dMach Base: | 2 | HPL sMach Base: | 2 | |
| HPL dMach Prec: | 2.220446e-16 | HPL sMach Prec: | 0.0000001192093 | |
| HPL dMach mLen: | 53 | HPL sMach mLen: | 24 | |
| HPL dMach Rnd: | 1 | HPL sMach Rnd: | 1 | |
| HPL dMach eMin: | -1021 | HPL sMach eMin: | -125 | |
| HPL dMach rMin: | 2.225074e-308 | HPL sMach rMin: | 1.175494e-38 | |
| HPL dMach eMax: | 1024 | HPL sMach eMax: | 128 | |
| HPL dMach rMax: | 1.797693e308 | HPL sMach rMax: | 3.402823e38 | |
| dweps: | 1.110223e-16 | sweps: | 0.00000005960464 | |
| PTRANS | ||||
| PTRANS: | 46006.3 GB/s | PTRANS time: | 0.32415 seconds | |
| PTRANS residual: | 0 | PTRANS N: | 1367100 | |
| PTRANS NB: | 15 | PTRANS NProw: | 30 | |
| PTRANS NPcol: | 49 | |||
| STREAM | ||||
| S-STREAM Copy: | 177.742 GB/s | S-STREAM Scale: | 175.601 GB/s | |
| S-STREAM Add: | 205.47 GB/s | S-STREAM Triad: | 264.371 GB/s | |
| EP-STREAM Copy: | 178.843 GB/s | EP-STREAM Scale: | 176.583 GB/s | |
| EP-STREAM Add: | 207.753 GB/s | EP-STREAM Triad: | 265.299 GB/s | |
| STREAM Vector Size: | 1695204000 | STREAM Threads: | 32 | |
| RandomAccess | ||||
| S-RandomAccess: | 1.14777 Gup/s | EP-RandomAccess: | 1.14762 Gup/s | |
| G-RandomAccess: | 1571.91 Gup/s | G-RandomAccess N: | 4398046511104 | |
| G-RandomAccess time: | 11.1916 seconds | G-RandomAccess Check Time: | 2796.76 seconds | |
| G-RandomAccess Errors: | 0 | G-RandomAccess Errors Fraction: | 0 | |
| G-RandomAccess TimeBound: | -1 | G-RandomAccess ExeUpdates: | 17592186044416 | |
| RandomAccess N: | 4294967296 | |||
| FFT | ||||
| S-FFT: | 109.307 GFlop/s | EP-FFT: | 109.506 GFlop/s | |
| MPIFFT: | 94855.8 GFlop/s | MPIFFT N: | 918330048000 | |
| MPIFFT Max Error: | 0.00000000000000437377 | MPIFFT time0: | 0 seconds | |
| MPIFFT time1: | 0 seconds | MPIFFT time2: | 0 seconds | |
| MPIFFT time3: | 0 seconds | MPIFFT time4: | 0 seconds | |
| MPIFFT time5: | 0 seconds | MPIFFT time6: | 0 seconds | |
| FFTEnblk: | 16 | FFTEnp: | 8 | |
| FFTEl2size: | 1048576 | |||
| DGEMM | ||||
| S-DGEMM: | 816.061 GFlop/s | EP-DGEMM: | 815.38 GFlop/s | |
| DGEMM N: | 41172 | |||
| RandomRing Latency/Bandwidth | ||||
| RandomRing Latency: | 5.22689 usec | RandomRing Bandwidth: | 3.38332 GB/s | |
| NaturalRing Latency/Bandwidth | ||||
| NaturalRing Latency: | 4.85042 usec | NaturalRing Bandwidth: | 6.71555 GB/s | |
| PingPong Latency/Bandwidth | ||||
| Maximum PingPong Latency: | 5.57773 usec | Maximum PingPong Bandwidth: | 15.3959 GB/s | |
| Minimum PingPong Latency: | 1.63826 usec | Minimum PingPong Bandwidth: | 4.26162 GB/s | |
| Average PingPong Latency: | 2.72818 usec | Average PingPong Bandwidth: | 5.55567 GB/s | |
| Size of Data Types | ||||
| char: | 1 byte | short: | 2 bytes | |
| int: | 4 bytes | long: | 8 bytes | |
| void ptr: | 8 bytes | float: | 4 bytes | |
| double: | 8 bytes | size t: | 8 bytes | |
| s64Int: | 8 bytes | u64Int: | 8 bytes | |
| OpenMP | ||||
| M OpenMP: | 200805 | OpenMP Num Threads: | 32 | |
| OpenMP Num Procs: | 64 | OpenMP Max Threads: | 32 | |
| Memory | ||||
| MemProc: | -1 | MemSpec: | -1 | |
| MemVal: | -1 | |||
| CPS | ||||
| CPS_HPCC_FFT_235: | 1 | CPS_HPCC_FFTW_ESTIMATE: | 0 | |
| CPS_HPCC_MEMALLCTR: | 0 | CPS_HPL_USE_GETPROCESSTIMES: | 0 | |
| CPS_RA_SANDIA_NOPT: | 0 | CPS_RA_SANDIA_OPT2: | 0 | |